Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Ich habe eine E-Mail an den technischen Support geschickt, um eine Rückerstattung zu beantragen, aber bisher keine Antwort erhalten.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
608ca1f0f8be8d3fc92efa202a3cdc0a00ee21922be79e6fd368801050188052
Signature (Ed25519, base64)
Qo06rlvncdMtbKcZFtweYfWKtKrCPXZyYjgbyqw7F+B5X5Xvbjhomo2e0yRUhSp6sTQH8HYcYiwxC7cfKQ5lDQ==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["608c8bfb36bcc8a4c731934dc09bb5ffa8416e741ad787dd760a33a26bdd2a42","ea229d24b45b7ab978b014816df13c281232efa0e4e034bad4d4462ffbc8866c","3362c65f2e4b1cadd4b2974cfb3d58a76d2cb38cb852867777ed5698a985a5ba","0936864eb5a513dfe622eae8c7d3f56e32744df5e159c3884d23a835219d8a42","66995d8f69b31241ae82481eff854c60e60e47c7cf6738576de08cee3a7f84e0","697be5da0ca3d7c70984d0194c9a2b9716b5650e9cc43c2c059d03347da34cc1","74f6c477355c6ba53fd48a81e85cae28d533259e2654fe6ae471eae68d048202","549d1e829e8c3f0dce946735974b0690769902aa73583a5204eaed44d267f3a1","cf04ab55969a5ba5a0a28325e0cad82f62314a6784d3fdb2abf538ab80992a22","b46cdd3eb502ea8d701c296271c408a8575a2b16828af47f917816215f47d9c5","17971a4c5f04b7879efb1439cdb9cfeb95d5979aa2126db67295ad88a283fb0b","f66e3f0908cccdfd396cb0e5dcc96f2570e4fe1056c45eec7a7025dce074a563","ac995c9ae640659c6b258d62d0cad1933912ca122fd33d27f90560dfd3199a84","aa4bbeb87247c2797626ab02a549451da6dfce4dcb854a36fdcc601e3e788772","bce5d442c07de6307e5ea8947098e74ce88c2246eda5e5fc1015a6d7519228a8"]
Anchored
2026-09-21
Public log entry
search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash
d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.
Canonical record
{"dataset_version":"v1789881486272","kind":"published-quote","locale":"de","page":"theme:vaia/service/de","quote":"Ich habe eine E-Mail an den technischen Support geschickt, um eine Rückerstattung zu beantragen, aber bisher keine Antwort erhalten.","rating":1,"review_date":"2026-07-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","v":1}

Verify in the public log

  1. Open the Rekor entry (pre-filled with this proof's log index).
  2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (e299bf38720a…), which ties this proof's root to the log entry.
  3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
  4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
  5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.